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Old 20 December 2012, 13:54   #1
edd_jedi
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Amiga 4000 PSU Fan Mod

As you all know the original A4000D PSU fan is pretty noisy, so I'd like to upgrade it to something quieter, but also hopefully better. I found a few old threads but nothing recent, so just thought I'd ask if people still think this is the best replacement:

http://www.ebay.co.uk/itm/130785210767

If not, any others I should look at? Also when I come to fit it, what precautions do I need to take when opening up and working on the PSU? I'm reasonably competent at soldering and working with motherboards etc but I am always cautious of anything that says 'Do Not Open' on it

Thanks.
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Old 20 December 2012, 14:27   #2
roy bates
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looks good to me edd.

you just need to check if its a 2 or 3 wire fan.

precautions,only the obvios really.just make sure the psu is not plugged in.
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Old 20 December 2012, 16:28   #3
lukassid
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I used very same in my plastic 128D. Does the job well.
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Old 20 December 2012, 17:18   #4
cosmicfrog
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recently modded my psu, cut couple of the fins away and installed another fan as well so its go 2 now
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Old 29 December 2012, 19:17   #5
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I fitted the new fan today, and wow what a difference! It is almost silent compared to the hoover-like noise it was making before. A must-have upgrade if you haven't done it! Here's a quick photo. I opted for soldering the wires together rather than trying to unsolder the old fan from the board.
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Old 30 December 2012, 13:32   #6
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looks good.
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Old 30 December 2012, 14:06   #7
alexh
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Make sure it is blowing in the correct direction.

http://eab.abime.net/showthread.php?t=59399
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Old 30 December 2012, 16:13   #8
roy bates
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Quote:
Originally Posted by alexh View Post
Make sure it is blowing in the correct direction.

http://eab.abime.net/showthread.php?t=59399


looks ok from here,its pushing the air towards the rear(mains socket end)
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Old 30 December 2012, 18:02   #9
mfilos
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Replacing the fan is nice
This seems like a nice fan who's quiet and has also some nice CFM \o/

I also cut the metal backplate where the holes for airflow exist for even better airflow and hasn't failied me ever since
http://mfilos.blogspot.com/2011/08/a4000-psu-mod.html
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